Driver for speaker



FIG. 1 is a perspective view of a driver for speaker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof, the right side view being a symmetrical mirror image thereof; and,

FIG. 4 is a top view thereof, the bottom view being a symmetrical mirror image thereof.

The broken lines depict portions of the driver for speaker that form no part of the claimed design. 

CLAIM The ornamental design for a driver for speaker, as shown and described. 